linux-kernel - Re: [rfc][patch] SLQB slab allocator

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Message-ID: <84144f020812130103t11fb4054rb934376a034ec802@mail.gmail.com>
Date:	Sat, 13 Dec 2008 11:03:51 +0200
From:	"Pekka Enberg" <penberg@...helsinki.fi>
To:	"Christoph Lameter" <cl@...ux-foundation.org>
Cc:	"Nick Piggin" <npiggin@...e.de>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Linux Memory Management List" <linux-mm@...ck.org>,
	bcrl@...ck.org, list-linux-mm@...ck.org
Subject: Re: [rfc][patch] SLQB slab allocator

On Sat, Dec 13, 2008 at 4:34 AM, Christoph Lameter
<cl@...ux-foundation.org> wrote:
> AFAICT this is the special case that matters in terms of the database
> test you are trying to improve. The case there is likely  the result
> of bad cache unfriendly programming. You may actually improve the
> benchmark more if the cachelines would be kept hot there in the right
> way.

Lets not forget the order-0 page thing, which is nice from page
allocator fragmentation point of view. But I suppose SLUB can use them
as well if we get around fixing the page allocator fastpaths?
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